Years: 2022 - 2025

Name: Extended Geochemical Observation of Urban Trajectories

Acronym: EGOUT

Partners:

• LSCE (porteur du projet) : [Jérémy Jacob]
• LEESU
• SIAAP
• METIS
• LADYSS

Summary

Nutrition, health, well-being… How can we get policy relevant and multi-thematic information on the typology and evolution of urban systems? Polls, surveys, census and… sewers!

Inspired by latests developments in Sewage Chemical-Information Mining, and consolidated by our recent successes, the EGOUT project aims at developing an objective, reactive and integrated observatory of the evolution of Paris by monitoring a large array of geochemical indicators and confront them to socio-economic metrics. We will produce maps of geochemical heterogeneities that will be analysed in the light of socio-economic. We will monitor the evolution of selected indicators to track socio-economic trajectories. Citizens, public policymakers and practitioner’s involvement will be ensured through a co-design and a participatory research action process.

Goal

Develop an observatory of practices of the Paris population based on the geochemistry of matters transported and accumulated in sewer networks.

Methodology

WP1: Spatial distribution and definition of new indicators

• Reference state
• Map of geochemical inequalities
• Comparison to socio-economical maps
• Definition of new indicators of the urban metabolism
• Determine weaknesses
• Urban planning tools

WP2: Interventional research with citizens

• Implication of citizens
• Evaluation of involvement, actors, levers of commitment
• Better understanding of the dynamics of matters

WP3: Temporal trajectories

• Geochemical trends in urban waters
• Retro-observation on sediments accumulated in sewers
• Warning systems
• Socio-environmental control acting on matter fluxes